.heat-exchanger-main .lower-title__back {
	background-image: url(../images/heat-exchanger/recruit-title-back.jpg);
}


.background-block {
	background-image: none;
	overflow: hidden;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	clip-path: inset(0);
}


.background-block__img {
	position: fixed;
	background-image: url(../images/heat-exchanger/heat-exchanger-about.jpg);
	top: 0;
	width: 100%;
	height: 100%;
	background-size: cover;
	background-position: right bottom;
	z-index: -1;
}

.heat-exchanger__about {
	/* background-image: url(../images/heat-exchanger/heat-exchanger-about.jpg); */
	background-size: cover;
	background-repeat: no-repeat;
	padding: 160px 30px 232px;
	position: relative;
	margin-top: 90px;
}

.heat-exchanger__about::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background-color: #808080;
	mix-blend-mode: multiply;
	z-index: 1;
}

.heat-exchanger__about--container {
    width: fit-content;
	max-width: 100%;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.heat-exchanger__about--midashi {
	line-height: 1.7;
	font-size: .36rem;
	color: #fff;
	margin-bottom: 135px;
	text-align: center;
}

.heat-exchanger__about--text {
	font-size: .18rem;
	color: #fff;
	line-height: 2.5;
}

/* 共通 */
.heat-exchanger__common-text {
	width: 1260px;
	max-width: 100%;
	margin: 50px auto 0px;
	padding: 0 30px;
}

.heat-exchanger__common-text h3 {
	font-size: .32rem;
}

.heat-exchanger__common-text p {
	font-size: .16rem;
}


/* 熱交換器のしくみ */
.heat-exchanger__mechanism {
	overflow: hidden;
	padding-top: 105px;
}

.mechanism-contents__head {
	font-size: .36rem;
}

.mechanism-contents__text {
	font-size: .18rem;
	margin-bottom: 55px;
}

.mechanism-contents {
	width: 1060px;
	max-width: 100%;
	margin: 33px auto 0;
	padding: 0 30px;
}

.mechanism-contents__img {
	margin-bottom: 70px;
}

.mechanism-feature {
	display: flex;
	justify-content: space-between;
}

.mechanism-feature__item {
	width: 47%;
}

.mechanism-contents__img--caption {
	font-size: .16rem;
	margin-bottom: 12px;
}

.mechanism-feature__name {
	font-size: .28rem;
	color: #003F92;
}

.mechanism-feature__text {
	font-size: .16rem;
}




/* 独自技術 */
.heat-exchanger__technology {
	overflow: hidden;
	padding-top: 103px;
}

.heat-exchanger__technology--container {
	width: 1245px;
	max-width: 100%;
	margin: 55px auto 0;
	padding: 0 30px;
}

.technology-list {
	margin-bottom: 157px;
}

.technology-list--title {
	display: flex;
}

.technology-list--title p {
	font-size: .48rem;
	line-height: 1.3;

}

.technology-list--title p span {
	font-size: .36rem;
	line-height: 1.3;
	display: block;
}

.technology-list--title img {
	width: 60px;
	margin-right: 31px;
}

.technology-gas .technology-list--title img {
	width: 29px;
	margin-right: 45px;
	margin-left: 18px;
}

.technology-list__lead {
	width: 84%;
	margin: 0 auto;
	font-size: .16rem;
	margin-top: 29px;
}

/* 気体―気体（ガス―ガス）のプレート式熱交換器構造 */
.technology-gas__img {
	width: 70%;
	margin: 15px auto 64px;
	padding-left: 49px;
	box-sizing: content-box;
}

.technology-list__supplement {
	width: 85%;
	margin: 0 auto 10px;
	font-size: .16rem;
}

.gas-element-name {
	font-size: .28rem;
	color: #003F92;
}

.gas-element-lead {
	font-size: .16rem;
	margin-bottom: 35px;
}

.technology-gas__element {
	display: flex;
	justify-content: space-between;
}

.technology-gas__element--item {
	width: 47%;
}

.technology-gas__element {
	display: flex;
	justify-content: space-between;
	width: 85%;
	margin: 0 auto;
}

.gas-element-img {
	width: 88%;
	margin: 0 auto;
}


/* 特許溶接 */
.technology-welding__img {
	display: flex;
	justify-content: space-between;
	width: 84%;
	margin: 40px auto 0;
}

.technology-welding__img img {
	width: 47%;
}

/* 間接型熱風発生機 */
.technology-indirect-heater__img {
	width: 78%;
	margin: 50px auto 0px;
}


/* 製品ラインナップ */
.heat-exchanger-products {
	overflow: hidden;
}

.heat-exchanger-products__container {
	width: 1260px;
	max-width: 100%;
	margin: 30px auto 0;
	padding: 0 30px;
}

.products-utensil {
	font-size: .48rem;
	color: #003F92;
	margin-bottom: 15px;
}


.products-item__list--wrap {
	margin: 0 auto 62px;
}

.products-item__list--flex {
	width: 1140px;
	max-width: 100%;
	margin: 0 auto 40px;
	display: flex;
	justify-content: space-between;
}

.products-item__list {}

.products-item__list--type {
	font-size: .16rem;
	position: relative;
	padding-left: 17px;
	line-height: 1.4;
	margin-bottom: 15px;
}

.products-item__list--type::before {
	content: "";
	position: absolute;
	left: 0;
	top: 5px;
	margin: auto;
	width: 14px;
	height: 14px;
	background-color: #003F92;
}


.plate-type {
	width: 59%;
}

.pipe-type {
	width: 8%;
	margin-right: 37px;
}

.elliptical-plate-type {
	width: 15%;
}

.elliptical-plate-type img {
	width: 77%;
	margin: 0 auto;
	display: block;
}

.purpose-text {
	font-size: .24rem;
	color: #003F92;
	width: 8%;
}

.products-item__purpose {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	border: solid 1px #003F92;
	padding: 17px 28px;
}

.products-item__point {
	width: 90%;
	display: flex;
	align-items: flex-start;
	position: relative;
}

.products-item__point ul {
	display: flex;
	flex-wrap: wrap;
	margin-top: 10px;
}

.products-item__point ul:nth-of-type(1) {
	width: 36%;
}

.products-item__point ul:nth-of-type(2) {
	width: 29%;
}

.products-item__point ul:nth-of-type(3) {
	width: 30%;
}

.etc {
	font-size: .15rem;
	position: absolute;
	right: 16px;
	bottom: 6px;
}

.products-item__point li {
	font-size: .15rem;
	margin-bottom: 2px;
	line-height: 1.5;
	margin-bottom: 10px;
	width: 100%;
}

.products-item__point li span {
	margin-right: 5px;
	color: #003F92;
	font-size: .10rem;
	vertical-align: middle;
	margin-top: -3px;
	display: inline-block;
}

.recycle-type__horizontal-1 {
	width: 22%;
}

.recycle-type__horizontal-2 {
	width: 21%;
}

.recycle-type__vertical {
	width: 21%;
}

.recycle-type__vertical img {
	width: 64%;
	margin: 0 auto;
	display: block;
	margin-top: 36px;
}

.recycle-type__oneway {
	width: 16%;
}

.recycle-type__oneway img {
	width: 64%;
	margin: 0 auto;
	display: block;
	margin-top: 36px;
}

.recycle-type-contents {}

.recycle-type-contents ul,
.expansion-joint__container ul {
	display: flex;
	margin-top: 0;
}

.recycle-type-contents li {
	width: 41%;
	margin-bottom: 0;
}

.recycle-type-contents .products-item__purpose,
.expansion-joint__container .products-item__purpose {
	align-items: center;
}


.expansion-joint__container li {
	width: 100%;
	margin-bottom: 0;
}

.square-shape-type {
	width: 46%;
}

.round-shape-type {
	width: 46%;
}

.cylinder-type {
	width: 30%;
}

.motor-type {
	width: 26%;
	margin-right: 70px;
}



.manual-type {
	width: 28%;
}

.manual-type img {
	width: 52%;
	display: block;
	/* margin: 0 auto; */
}

.damper-container .products-item__list--flex {
	width: 75%;
	margin-bottom: 4px;
}



/* 設計〜メンテナンス */
.heat-exchanger-service {
	overflow: hidden;
	padding-top: 84px;
}

.service-detail img {
	width: 61px;
	margin-right: 64px;
}

.service-flow1 .service-detail img {
	width: 29px;
	margin-left: 25px;
}

.service-flow__caption {
	width: 82%;
}

.service-flow__subject {
	font-size: .60rem;
	line-height: 1.5;
	margin-top: -21px;
	margin-bottom: 32px;
}

.service-flow__text {
	font-size: .16rem;
}

.service-detail {
	display: flex;
	align-items: flex-start;
	width: 55%;
}

.heat-exchanger-service__container {
	width: 1260px;
	max-width: 100%;
	margin: 86px auto 0;
	padding: 0 30px;
}

.heat-exchanger-service__flow {
	display: flex;
	justify-content: space-between;
	position: relative;
	padding-bottom: 100px;
	margin-bottom: 45px;
}

.heat-exchanger-service__flow::before {
	content: "";
	position: absolute;
	background-image: url(../images/heat-exchanger/arrow.svg);
	background-size: cover;
	background-repeat: no-repeat;
	width: 64px;
	height: 74px;
	left: 0;
	right: 0;
	bottom: 0;
	margin: auto;
}

.service-detail {}

.service-img {
	width: 40%;
}

.service-flow3 .service-detail {
	width: 100%;
}

.service-flow3::before {
	display: none;
}

.heat-exchanger-main .lower-btn-box {
	width: 1245px;
	padding: 0 20px;
	margin: 118px auto 0;
}

.heat-exchanger-main .lower-btn-box .lower-common-btn {
	width: 32%;
	padding: 23px 0;
}

.heat-exchanger-main .lower-btn-box .group-btn {
	line-height: 1.2;
}

.heat-exchanger-main .group-common__text {
	padding-bottom: 0;
}


@media screen and (max-width:800px) {
	.background-block__img {
		background-image: url(../images/heat-exchanger/heat-exchanger-about-sp.jpg);
	}

	div.wide_sp_only {
		margin-left: -20px;
		width: calc(100vw - 20px);
	}

	div.wide_sp_only img {
		width: 100%;
	}

	.heat-exchanger__about--midashi {
		font-size: .24rem;
		margin-bottom: 50px;
		text-align: justify;
	}

	.heat-exchanger__about--text {
		font-size: .16rem;
		line-height: 2;
	}

	.heat-exchanger__about {
		padding: 100px 30px 110px;
		margin-top: 45px;
	}

	.heat-exchanger__common-text h3 {
		font-size: .24rem;
		line-height: 1.6;
		margin-bottom: 5px;
	}

	.heat-exchanger__common-text p {
		font-size: .15rem;
	}

	.mechanism-contents {
		padding: 0 30px;
	}

	.mechanism-contents__text {
		font-size: .16rem;
		margin-bottom: 30px;
	}

	.mechanism-contents__head {
		font-size: .30rem;
	}

	.mechanism-contents__img--caption {
		font-size: .15rem;
		margin-bottom: 40px;
	}

	.mechanism-contents__img {
		margin-bottom: 30px;
	}

	.mechanism-feature {
		flex-direction: column;
	}

	.mechanism-feature__item {
		width: 100%;
		margin-bottom: 20px;
	}

	.mechanism-feature__name {
		font-size: .18rem;
	}

	.mechanism-feature__text {
		font-size: .15rem;
		line-height: 1.6;
	}


	/* 独自技術 */
	.heat-exchanger__technology {
        padding-top: 100px;
        margin-bottom: 40px;
    }

	.technology-list--title {
		align-items: center;
	}

	.technology-list--title p {
		font-size: .21rem;
	}

	.technology-list--title img {
		width: 40px;
		margin-right: 25px;
	}

	.technology-gas .technology-list--title img {
		width: 20px;
		margin-right: 25px;
		margin-left: 5px;
	}

	.technology-gas__img {
		width: 100%;
		margin: 17px auto 55px;
		padding-left: 0;
	}

	.technology-list__lead {
		margin-top: 17px;
		width: 100%;
		font-size: .15rem;
	}

	.technology-list__supplement {
		width: 100%;
		margin: 0 auto 10px;
		font-size: .15rem;
	}

	.technology-gas__element {
		width: 100%;
		flex-direction: column;
		margin-top: 20px;
	}

	.technology-gas__element--item {
		width: 100%;
	}

	.technology-gas__element--item_ug {
		margin-bottom: 40px;
	}

	.gas-element-name {
		font-size: .22rem;
	}

	.heat-exchanger__technology--container {
		padding: 0 30px;
	}

	.technology-list--title p span {
		font-size: .18rem;
	}

	.gas-element-lead {
		font-size: .15rem;
		margin-bottom: 15px;
	}

	.gas-element-img {
		width: 100%;
		margin: 0 auto;
	}

	.technology-list {
		margin-bottom: 70px;
	}

	.technology-welding__img {
		width: 100%;
		flex-direction: column;
		margin: 15px auto 0;
	}

	.technology-welding__img img {
		width: 100%;
		margin-bottom: 0;
	}

	.technology-indirect-heater__img {
		margin: 15px auto 0px;
	}

	/* 製品ラインナップ */
	.products-item__list--type {
		margin-bottom: 24px;
	}

	.heat-exchanger-products__container {
		padding: 0 30px;
	}

	.heat-exchanger__common-text {
		margin: 30px auto 0px;
		padding: 0 30px;
	}

    .products-item__list--flex {
        flex-direction: column;
        margin-bottom: 0;
    }

	.products-utensil {
		font-size: .30rem;
		margin-bottom: 10px;
	}

	.products-item__list {
        margin-bottom: 40px;
	}

	.plate-type {
		width: 100%;
	}

	.pipe-type {
		width: 100%;
		margin: 0 auto 30px;
	}

	.pipe-type img {
		margin: 0 auto;
		display: block;
		width: 25%;
	}

    .elliptical-plate-type {
        width: 100%;
        margin: 0px auto 30px;
    }

	.elliptical-plate-type img {
		margin: 0 auto;
		display: block;
		width: 36%;
	}

	.products-item__purpose {
		padding: 5px 15px 10px;
		flex-direction: column;
	}

	.products-item__purpose-heat {
		padding: 15px 15px 25px;
	}

	.purpose-text {
		font-size: .22rem;
		width: 100%;
		margin-bottom: 8px;
	}

	.products-item__point {
		width: 100%;
		flex-direction: column;
	}

	.products-item__point ul {
		margin-top: 0;
		margin-bottom: 10px;
	}

	.products-item__point li {
		text-indent: -.08rem;
		margin-left: .2rem;
	}

	.products-item__point ul:nth-of-type(1),
	.products-item__point ul:nth-of-type(2),
	.products-item__point ul:nth-of-type(3) {
		width: 100%;
	}

	.etc {
		right: 1px;
		bottom: -15px;
	}

	.products-item__point li span.falldown {
		margin-right: 0;
		color: #000;
		font-size: .15rem;
		vertical-align: unset;
		margin-top: 0;
		text-indent: initial;
	}


	.recycle-type__horizontal-1,
	.recycle-type__horizontal-2,
	.recycle-type__vertical,
	.recycle-type__oneway {
		width: 100%;
		margin-bottom: 30px;
	}

    .recycle-type__horizontal-1 img, 
	.recycle-type__horizontal-2 img {
        width: 59%;
        display: block;
        margin: 0 auto;
    }

    .recycle-type__horizontal-1 img{
        margin: -11px auto 0;
    }
	
    .recycle-type__vertical img {
        margin-top: -17px;
        width: 52%;
    }

	.recycle-type__oneway img {
        width: 44%;
        display: block;
        margin: -40px auto 0;
    }

	.square-shape-type,
	.round-shape-type {
		width: 100%;
		margin-bottom: 30px;
	}


	.cylinder-type,
	.motor-type,
	.manual-type {
		width: 100%;
		margin-bottom: 30px;
	}

    .cylinder-type img, 
	.motor-type img, 
	.manual-type img {
        width: 54%;
        display: block;
        margin: -12px auto 0;
    }

    .manual-type img {
        width: 36%;
        display: block;
        margin: 0 auto;
    }

	.damper-container .products-item__list--flex {
		width: 100%;
		margin-bottom: 4px;
	}

	.products-item__point li:last-child {
		margin-bottom: 0;
	}



	.damper-container {
		margin-bottom: 20px;
	}

	/* 設計〜メンテナンス */
	.heat-exchanger-service__flow {
		flex-direction: column;
		margin-bottom: 0;
		padding-bottom: 90px;
	}

	.service-flow1 .service-detail img {
		width: 18px;
		margin-right: 22px;
		margin-left: 5px;
	}

	.heat-exchanger-service__container {
		margin: 60px auto 0;
		padding: 0 30px;
	}

	.service-detail {
		width: 100%;
		margin-bottom: 15px;
	}


	.service-flow__subject {
		font-size: .40rem;
		margin-top: 0px;
		margin-bottom: 0px;
	}


	.service-img {
		width: 100%;
	}

	.service-flow__text {
		font-size: .16rem;
		line-height: 1.6;
		width: calc(100vw - 60px);
		margin-top: 17px;
	}

	.service-flow1 .service-flow__text {
		margin-left: -45px;
	}

	.service-flow2 .service-flow__text {
		margin-left: -62px;
	}

	.service-flow3 .service-flow__text {
		margin-left: -62px;
	}

	.heat-exchanger-service__flow::before {
		width: 45px;
		height: 52px;
		bottom: 20px;
	}

	.service-detail img {
		width: 38px;
		margin-right: 24px;
	}

	.service-flow3 {
		padding-bottom: 0;
	}

	.heat-exchanger-main .lower-btn-box {
		margin: 80px auto 0;
	}

	.heat-exchanger-main .lower-btn-box .lower-common-btn {
		width: 300px;
		padding: 10px 0;
	}

	.text-half {
		letter-spacing: -0.1rem;
	}

}